PRACE NPT

##

##  install -- Install a program, script or datafile

##  Copyright (c) 1997-2000 Ralf S. Engelschall <rse@engelschall.com>

##  Originally written for shtool

##

##  This file is part of shtool and free software; you can redistribute

##  it and/or modify it under the terms of the GNU General Public

##  License as published by the Free Software Foundation; either version

##  2 of the License, or (at your option) any later version.

##

##  This file is distributed in the hope that it will be useful,

##  but WITHOUT ANY WARRANTY; without even the implied warranty of

##  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

##  General Public License for more details.

##

##  You should have received a copy of the GNU General Public License

##  along with this program; if not, write to the Free Software

##  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,

##  USA, or contact Ralf S. Engelschall <rse@engelschall.com>.

##

str_tool="install"

str_usage="[-v] [-t] [-c] [-C] [-s] [-m<mode>] [-o<owner>] [-g<group>] [-e<ext>] <file> [<file> ...] <path>"

arg_spec="2+"

opt_spec="v.t.c.C.s.m:o:g:e:"

opt_v=no

opt_t=no

opt_c=no

opt_C=no

opt_s=no

opt_m=""

opt_o=""

opt_g=""

opt_e=""

. ./sh.common

#   determine source(s) and destination

argc=$#

srcs=""

while [ $# -gt 1 ]; do

    srcs="$srcs $1"

    shift

done

dstpath="$1"

#   type check for destination

dstisdir=0

if [ -d $dstpath ]; then

    dstpath=`echo "$dstpath" | sed -e 's:/$::'`

    dstisdir=1

fi

#   consistency check for destination

if [ $argc -gt 2 -a $dstisdir = 0 ]; then

    echo "$msgprefix:Error: multiple sources require destination to be directory" 1>&2

    exit 1

fi

#   iterate over all source(s)

for src in $srcs; do

    dst=$dstpath

    #  If destination is a directory, append the input filename

    if [ $dstisdir = 1 ]; then

        dstfile=`echo "$src" | sed -e 's;.*/\([^/]*\)$;\1;'`

        dst="$dst/$dstfile"

    fi

    #  Add a possible extension to src and dst

    if [ ".$opt_e" != . ]; then

        src="$src$opt_e"

        dst="$dst$opt_e"

    fi

    #  Check for correct arguments

    if [ ".$src" = ".$dst" ]; then

        echo "$msgprefix:Warning: source and destination are the same - skipped" 1>&2

        continue

    fi

    if [ -d "$src" ]; then

        echo "$msgprefix:Warning: source \`$src' is a directory - skipped" 1>&2

        continue

    fi

    #  Make a temp file name in the destination directory

    dsttmp=`echo $dst |\

            sed -e 's;[^/]*$;;' -e 's;\(.\)/$;\1;' -e 's;^$;.;' \

                -e "s;\$;/#INST@$$#;"`

    #  Verbosity

    if [ ".$opt_v" = .yes ]; then

        echo "$src -> $dst" 1>&2

    fi

    #  Copy or move the file name to the temp name

    #  (because we might be not allowed to change the source)

    if [ ".$opt_C" = .yes ]; then

        opt_c=yes

    fi

    if [ ".$opt_c" = .yes ]; then

        if [ ".$opt_t" = .yes ]; then

            echo "cp $src $dsttmp" 1>&2

        fi

        cp $src $dsttmp || exit $?

    else

        if [ ".$opt_t" = .yes ]; then

            echo "mv $src $dsttmp" 1>&2

        fi

        mv $src $dsttmp || exit $?

    fi

    #  Adjust the target file

    #  (we do chmod last to preserve setuid bits)

    if [ ".$opt_s" = .yes ]; then

        if [ ".$opt_t" = .yes ]; then

            echo "strip $dsttmp" 1>&2

        fi

        strip $dsttmp || exit $?

    fi

    if [ ".$opt_o" != . ]; then

        if [ ".$opt_t" = .yes ]; then

            echo "chown $opt_o $dsttmp" 1>&2

        fi

        chown $opt_o $dsttmp || exit $?

    fi

    if [ ".$opt_g" != . ]; then

        if [ ".$opt_t" = .yes ]; then

            echo "chgrp $opt_g $dsttmp" 1>&2

        fi

        chgrp $opt_g $dsttmp || exit $?

    fi

    if [ ".$opt_m" != . ]; then

        if [ ".$opt_t" = .yes ]; then

            echo "chmod $opt_m $dsttmp" 1>&2

        fi

        chmod $opt_m $dsttmp || exit $?

    fi

    #   Determine whether to do a quick install

    #   (has to be done _after_ the strip was already done)

    quick=no

    if [ ".$opt_C" = .yes ]; then

        if [ -r $dst ]; then

            if cmp -s $src $dst; then

                quick=yes

            fi

        fi

    fi

    #   Finally install the file to the real destination

    if [ $quick = yes ]; then

        if [ ".$opt_t" = .yes ]; then

            echo "rm -f $dsttmp" 1>&2

        fi

        rm -f $dsttmp

    else

        if [ ".$opt_t" = .yes ]; then

            echo "rm -f $dst && mv $dsttmp $dst" 1>&2

        fi

        rm -f $dst && mv $dsttmp $dst

    fi

done